1、 International Telecommunication Union ITU-T Q.3611TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2009) SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for the NGN Service and session control protocols supplementary services Signalling requirements and protocol profiles
2、 for NGN customized ringing tone service Recommendation ITU-T Q.3611 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q
3、.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL EXCHANGES Q.500Q.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBE
4、R SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT NETWORK Q.1200Q.1699 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTRO
5、L (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR THE NGN Q.3000Q.3999 General Q.3000Q.3029 Network signalling and control functional architecture Q.3030Q.3099 Network data organization within the NGN Q.3100Q.3129 Bearer control signalling Q.3130Q.3179 Signa
6、lling and control requirements and protocols to support attachment in NGN environments Q.3200Q.3249 Resource control protocols Q.3300Q.3369 Service and session control protocols Q.3400Q.3499 Service and session control protocols supplementary services Q.3600Q.3649NGN applications Q.3700Q.3849 Testin
7、g for NGN networks Q.3900Q.3999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Q.3611 (06/2009) i Recommendation ITU-T Q.3611 Signalling requirements and protocol profiles for NGN customized ringing tone service Summary Recommendation ITU-T Q.3611 specifies the si
8、gnalling requirements and protocol profiles for next generation network (NGN) customized ringing tone (CRT). Source Recommendation ITU-T Q.3611 was approved on 29 June 2009 by ITU-T Study Group 11 (2009-2012) under Recommendation ITU-T A.8 procedures. Keywords Call server, CRT, IMS, NGN, SDP, SIP. i
9、i Rec. ITU-T Q.3611 (06/2009) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU.
10、 ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for
11、 study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared o
12、n a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may cont
13、ain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express r
14、equirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property
15、Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of inte
16、llectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All ri
17、ghts reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Q.3611 (06/2009) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abb
18、reviations and acronyms 2 5 CRT service and architecture 4 5.1 General description . 4 5.2 General architecture 4 5.3 Possible CRT service architectures 4 6 Service models 5 7 Media formats . 6 7.1 Audio 6 7.2 Video 6 7.3 Text . 6 7.4 Still image . 6 8 Signalling requirements 6 8.1 Requirements for
19、the terminating UE . 6 8.2 Requirements for the terminating P-CSC-FE . 7 8.3 Requirements for the I-CSC-FE . 7 8.4 Requirements for the S-CSC-FE 7 8.5 Requirements for the IBC-FE . 8 8.6 Requirements for the call server . 8 8.7 Requirements for the AS-FE 8 9 Protocol profiles 10 9.1 IMS-based CRT se
20、rvice . 10 9.2 Call-server based CRT service . 12 10 Interactions between networks . 12 10.1 Providing circuit switched network CRT to the terminating UE in the NGN domain 12 10.2 Providing NGN CRT to the called party in the circuit switched network domain 13 11 Interactions with other services on N
21、GN 13 11.1 Originating identification presentation (OIP) . 13 11.2 Originating identification restriction (OIR) 13 11.3 Terminating identification presentation (TIP) 13 11.4 Terminating identification restriction (TIR) . 13 iv Rec. ITU-T Q.3611 (06/2009) Page 11.5 Communication HOLD (HOLD) . 13 11.6
22、 Call Waiting (CW) services 14 11.7 Communication diversion (CDIV) services . 14 11.8 Explicit communication transfer (ECT) service . 14 11.9 Originating CRT service interacting with terminating CRT service 14 12 Security considerations . 14 Annex A Multi-dialog mode . 16 A.1 General description . 1
23、6 A.2 Signalling requirements 16 Appendix I Signalling flows . 18 I.1 CRT service using gateway model . 18 I.2 CRT service using application server model 23 I.3 CRT service using HTTP model 27 I.4 CRT service priority using application server model . 29 Bibliography. 37 Rec. ITU-T Q.3611 (06/2009) 1
24、 Recommendation ITU-T Q.3611 Signalling requirements and protocol profiles for NGN customized ringing tone service 1 Scope This Recommendation specifies signalling requirements and protocol profiles for NGN customized ringing tone (CRT) service. This Recommendation also contains signalling flows. Th
25、e CRT service is defined in the next generation network (NGN), including IP multimedia subsystem (IMS) and call-server based networks. This Recommendation is based on b-ITU-T Y.2214 and covers in this version only the signalling requirements and protocol profiles for the presentation features of CRT
26、. The capability for the CRT filtering features is for further study. This Recommendation covers the protocol profiles over user network interface (UNI) and network-to-network interface (NNI) based on ITU-T Q.3402 and ITU-T Q.3401, respectively. Detailed protocol profiles for other interfaces may be
27、 subject to future specifications. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and othe
28、r references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The ref
29、erence to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Q.763 Recommendation ITU-T Q.763 (1999), Signalling System No. 7 ISDN User Part formats and codes. ITU-T Q.3401 Recommendation ITU-T Q.3401 (2007), NGN NNI signalling pr
30、ofile (Protocol Set 1); Amendment 1 (2008). ITU-T Q.3402 Recommendation ITU-T Q.3402 (2008), NGN UNI signalling profile (Protocol Set 1). ITU-T T.81 Recommendation ITU-T T.81 (1992) | ISO/IEC 10918-1:1994, Information technology Digital compression and coding of continuous-tone still images Requirem
31、ents and guidelines. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2006), Functional requirements and architecture of the NGN release 1. ITU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. IETF RFC 2616 IETF RFC 2616 (1999), Hypertext Transfer Protocol HTTP/1.1. IET
32、F RFC 3261 IETF RFC 3261 (2002), SIP: Session Initiation Protocol. IETF RFC 3262 IETF RFC 3262 (2002), Reliability of Provisional Responses in the Session Initiation Protocol (SIP). IETF RFC 3311 IETF RFC 3311 (2002), The Session Initiation Protocol (SIP) UPDATE Method. 2 Rec. ITU-T Q.3611 (06/2009)
33、 IETF RFC 3372 IETF RFC 3372 (2002), Session Initiation Protocol for Telephones (SIP-T), Context and Architectures. IETF RFC 3515 IETF RFC 3515 (2003), The Session Initiation Protocol (SIP) Refer Method. IETF RFC 3959 IETF RFC 3959 (2004), The Early Session Disposition Type for the Session Initiatio
34、n Protocol (SIP). IETF RFC 3960 IETF RFC 3960 (2004), Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP). IETF RFC 5009 IETF RFC 5009 (2007), Private Header (P-Header) Extension to the Session Initiation Protocol (SIP) for Authorization of Early Media. 3 Definitions 3.1
35、 Terms defined elsewhere This Recommendation uses the following term defined elsewhere: 3.1.1 early media IETF RFC 3959: The media (e.g., audio and video) that is exchanged before a particular session is accepted by the called user. 3.2 Terms defined in this Recommendation This Recommendation define
36、s the following terms: 3.2.1 called CRT service subscriber: The called party who subscribes to the called party configured CRT service. 3.2.2 calling CRT service subscriber: The calling party who subscribes to the CRT service. 3.2.3 CRT service user: The called party who experiences the CRT service.
37、 3.2.4 early media for CRT: Early media that are delivered to the called party with the media contents configured by the service subscriber. It can be generated by the originating network or the terminating network, depending on the location of service subscriptions. 3.1.5 icon ring tone server (IRT
38、 server): Icon ring tone server (IRT) stores the ringing tone media such as audio, video and picture files. The IRT server behaves as a web server and can be provided by content providers or operators. A user terminal can interact with the IRT server via, for example, HTTP, to download the ringing t
39、one media. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: AS Application Server AS-FE Application Support Functional Entity AVP Audio Video Profile CDIV Communication DIVersion CFNR Call Forwarding on No Reply CRT Customized Ringing Tone CSN Circuit S
40、witched Network ECT Explicit Communication Transfer HOLD Communication HOLD Rec. ITU-T Q.3611 (06/2009) 3 HTTP HyperText Transfer Protocol IAM Initial Address Message IBC-FE Interconnection Border Gateway Control Functional Entity I-CSC-FE Interrogating Call Session Control Functional Entity IMS IP
41、Multimedia Subsystem IRT Icon Ring Tone MGC-FE Media Gateway Control Functional Entity MRC-FE Media Resource Control Functional Entity MRFC Media Resource Function Controller MRP-FE Media Resource Processing Functional Entity NGN Next Generation Network NNI Network-to-Network Interface OIP Originati
42、ng Identification Presentation OIR Originating Identification Restriction P-CSC-FE Proxy Call Session Control Functional Entity RTCP RTP Control Protocol RTP Real-Time Transport Protocol S-CSC-FE Serving Call Session Control Functional Entity SDP Session Description Protocol SIP Session Initiation P
43、rotocol SIP UA SIP User Agent SUP-FE Service User Profile Functional Entity TIP Terminating Identification Presentation TIR Terminating Identification Restriction UAC User Agent Client UAS User Agent Server UDP User Datagram Protocol UE User Equipment UE-A User Equipment for user A UE-B User Equipme
44、nt for user B UNI User-to-Network Interface URL Uniform Resource Locator UUI User-to-User Information 4 Rec. ITU-T Q.3611 (06/2009) 5 CRT service and architecture 5.1 General description The customized ringing tone (CRT) service provides the called party with the calling partys customized ringing to
45、ne. The service can be subscribed by the calling party or the called party. The service is invoked to provide customized ringing tone to the called party, according to the service configuration. The CRT contents can be multimedia representing avatar, business card, etc. The calling party subscribed
46、to CRT is always triggered at the originating networks service system. Otherwise, the called party subscribed to CRT is always triggered at the terminating networks service system. To protect the called party from possible malicious CRT contents, the network should provide the capability for the cal
47、led party to reject CRT (e.g., reject CRT unconditionally, for unknown parties, for black listed parties, etc.). The capability for the CRT filtering features is for further study. 5.2 General architecture The CRT service is defined and provided in the NGN architecture, which is either IMS-based or
48、call-server based. Figure 5-1 shows a general architecture that is compliant with ITU-T Y.2012 for providing the CRT service based on IMS and call-server networks, respectively. Q.3611(09)_F5.1Originating networkService stratum Service stratumASF/SSF ASF/SSFCRT service CRT serviceCall servercomponen
49、tCall servercomponentIMScomponentIMScomponentTransport stratum Transport stratumSCF SCFTerminating networkTerminatingend user functionNGN NNI NGN UNIFigure 5-1 CRT service functional architecture 5.3 Possible CRT service architectures Originating IMS-based and call-server based possible service architectures for the CRT service are shown in Figures 5-2 and 5-3, respectively. The terminating IMS-based possible scenarios for the calling party c
